TRUVUE Hide-a-key Fake Rock For Your Garden: TA72-ROCK-Z02 : (Pack of 2 Pcs.) Weather resistant-this rock is heavy duty and will stand up to any weather Inconspicuous looking to match with yard and rocks- no one would imagine it's hiding your key Just place it in your garden with your extra key, and don't get locked out again This rock measures 3.5 inch and weighs only 2 ounces - easy to transport and more Hidden compartment pops out and fits standard sized keys with ease - not great for large keys